Merge pull request #59 from petejohanson/sensors/en11-encoder-sensor

Initial low level EC11 sensor driver

1 files changed, 59 insertions, 0 deletions

diff --git a/app/drivers/zephyr/ec11.h b/app/drivers/zephyr/ec11.h
new file mode 100644
index 0000000..b54e532
--- /dev/null
+++ b/app/drivers/zephyr/ec11.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2020 Peter Johanson
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include <device.h>
+#include <drivers/gpio.h>
+#include <sys/util.h>
+
+struct ec11_config {
+	const char *a_label;
+	const u8_t a_pin;
+	const u8_t a_flags;
+
+	const char *b_label;
+	const u8_t b_pin;
+	const u8_t b_flags;
+
+	const u8_t resolution;
+};
+
+struct ec11_data {
+	struct device *a;
+	struct device *b;
+	u8_t ab_state;
+	s8_t pulses;
+	s8_t ticks;
+	s8_t delta;
+
+#ifdef CONFIG_EC11_TRIGGER
+	struct gpio_callback a_gpio_cb;
+	struct gpio_callback b_gpio_cb;
+	struct device *dev;
+
+	sensor_trigger_handler_t handler;
+	struct sensor_trigger trigger;
+
+#if defined(CONFIG_EC11_TRIGGER_OWN_THREAD)
+	K_THREAD_STACK_MEMBER(thread_stack, CONFIG_EC11_THREAD_STACK_SIZE);
+	struct k_sem gpio_sem;
+	struct k_thread thread;
+#elif defined(CONFIG_EC11_TRIGGER_GLOBAL_THREAD)
+	struct k_work work;
+#endif
+
+#endif /* CONFIG_EC11_TRIGGER */
+};
+
+#ifdef CONFIG_EC11_TRIGGER
+
+int ec11_trigger_set(struct device *dev,
+		       const struct sensor_trigger *trig,
+		       sensor_trigger_handler_t handler);
+
+int ec11_init_interrupt(struct device *dev);
+#endif